| 摘要 |
PROBLEM TO BE SOLVED: To resolve a problem of a conventional wheel barrow requiring great strength just to lift it due to offsetting of load weight to near one's hand and requiring strength to support it because it is a wheel barrow liable to fall down, causing work to be very tiring and low work efficiency. SOLUTION: This wheel barrow singularly provides functions of a wheel barrow and a tricycle by providing auxiliary wheels (casters) 1 on a wheel barrow body 2, and when it is used as a tricycle for satisfying the purpose, the auxiliary wheels are placed on the ground, and when it is used as a wheel barrow, the auxiliary wheels 1 are lifted from the ground by use of newly provided handles 4.
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